NOTE: Make sure the latch for the hold-open rod points to
____ the forward direction (Refer to 747-400 SB 71-2233 and 747-400 MT 71-008).
 TASK 71-11-06-412-001-N00
 3. Close the Core Cowl Panel (Fig. 201)
_________________________
 A. References
 (1)  
AMM 71-11-07/501, Core Cowl Panel Latches

 (2)  
AMM 78-31-00/201, Thrust Reverser System

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 71-11-06
 ALL  ú ú N01 Page 203 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
B. Access
 (1)  
Location Zone
 417 and 418 Core Cowl Panel - Engine 1
 427 and 428 Core Cowl Panel - Engine 2
 437 and 438 Core Cowl Panel - Engine 3
 447 and 448 Core Cowl Panel - Engine 4

 C.
Procedure

 S 412-013-N00
 WARNING: DO NOT HOLD THE CORE COWL PANELS OPEN WITH THE HOLD-OPEN RODS
_______
 IF THE WIND VELOCITY IS MORE THAN 60 KNOTS. THE HOLD-OPEN ROD
 CAN HAVE A FAILURE IN HIGH WINDS WHICH CAN CAUSE INJURY TO
 PERSONS OR DAMAGE TO EQUIPMENT.

 WARNING: HOLD THE CORE COWL PANEL OPEN WHEN YOU REMOVE THE HOLD-OPEN ROD
_______
 FROM THE ENGINE. THE RIGHT COWL PANEL WEIGHS 110 POUNDS. THE
 LEFT COWL PANEL WEIGHS 130 POUNDS. IF THE CORE COWL PANEL
 FALLS, INJURY TO PERSONS CAN OCCUR.

 (1)  Retract and put the hold-open rod in the stow position.
 NOTE: Make sure the latch for the hold-open rod points to the
____ forward direction (Refer to 747-400 SB 71-2233 and 747-400 MT 71-008).
 (a)  
Manually hold the core cowl panel.

 (b)  
Remove the hold-open rod from the receiver bracket on the engine.

 (c)  
Push the latch and install the hold-open rod in the stow bracket on the core cowl panel.

 S 412-000-N00
 WARNING: USE CAUTION WHEN YOU CLOSE THE CORE COWL PANELS IN HIGH WINDS.
_______
 IF YOU DO NOT USE CAUTION, INJURY TO PERSONS OR DAMAGE TO
 EQUIPMENT CAN OCCUR.

 (2)  
Close the core cowl panel.

 (3)  
Close the latches on the bottom of the core cowl panel.

 S 212-015-N00

 (4)  
Make sure the latch handles are smooth with the outer surface of the core cowl panel.

 S 822-008-N00

 (5)  
If the latch handles are not smooth, adjust the latches
 (AMM 71-11-07/501).

 S 412-014-N00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 71-11-06
 ALL  ú ú N01 Page 204 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 442-009-N00
 (6)  Do the activation procedure for the thrust reverser (AMM 78-31-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 71-11-06
 ALL  ú ú N01 Page 205 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
CORE COWL PANEL - REMOVAL/INSTALLATION
______________________________________
 1.  General
_______
 A.  Two tasks are given in this procedure. The first task removes the core cowl panel. The second task installs the core cowl panel. These tasks are for the inboard and outboard core cowl panels.
 TASK 71-11-06-014-043-N00
 2.  Remove the Core Cowl Panel
__________________________
 A.  Special Tools and Equipment
 (1)  
A71016-1 Sling - Core Cowl

 (2)  
A20001-79 Boom Hoist - General (8 foot
 Lift, 400 pound cap)

 (3)  
A20001-65 Hoist Arm - Extension

 B.  
　
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊 動力裝置 POWER PLANT 2(77)